Interferometric measurement of the tip oscillation amplitude in apertureless near-field optical microscopy (Articolo in rivista)

Type
Label
  • Interferometric measurement of the tip oscillation amplitude in apertureless near-field optical microscopy (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • Gucciardi, PG; Bachelier, G; Mlayah, A; Allegrini, M (2005)
    Interferometric measurement of the tip oscillation amplitude in apertureless near-field optical microscopy
    in Review of scientific instruments
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gucciardi, PG; Bachelier, G; Mlayah, A; Allegrini, M (literal)
Pagina inizio
  • 036105 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 76 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR, Ist Proc Chimicofis, I-98123 Messina, Italy Univ Toulouse 3, Phys Solides Lab, F-31062 Toulouse, France Univ Pisa, Dipartimento Fis, INFM, I-56126 Pisa, Italy (literal)
Titolo
  • Interferometric measurement of the tip oscillation amplitude in apertureless near-field optical microscopy (literal)
Abstract
  • We have implemented an optical homodyne interferometer to measure the tip oscillation amplitude in apertureless near-field optical microscopy. The setup is fully embedded in the microscope's design, avoiding the presence of external arms. Our method is based on the synchronous detection of the interference between the fields reflected by the tip and a glass sample surface, while scanning the tip-sample distance over a few wavelengths. With the help of a simple model, we show how the different interference terms arising at frequencies multiple of the tip oscillation can be exploited to easily achieve sub-Angstrom resolution. (literal)
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